ADC32RF44 Datasheet, PDF (7/134 Pages) Texas Instruments – Dual-Channel, 14-Bit, 2.6-GSPS, Analog-to-Digital Converter

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ADC32RF44
SBAS809 – FEBRUARY 2017
7.6 AC Performance Characteristics
typical values specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient
temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD =
1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN ⁽¹⁾
NOM
MAX UNIT
SNR
Signal-to-noise ratio
NSD
Noise spectral density
averaged across the
Nyquist zone
NF ⁽³⁾
Small-signal SNR
Input noise figure
SINAD
Signal-to-noise and
distortion ratio
ENOB Effective number of bits
SFDR
Spurious-free dynamic
range
HD2 ⁽⁴⁾
Second-order harmonic
distortion
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
f_IN = 1850 MHz, A_OUT = –40 dBFS
f_IN = 1850 MHz, A_OUT = –40 dBFS
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
f_IN = 100 MHz, A_OUT = –2 dBFS
f_IN = 900 MHz, A_OUT = –2 dBFS
f_IN = 1850 MHz, A_OUT = –2 dBFS
f_IN = 2100 MHz, A_OUT = –2 dBFS
f_IN = 2500 MHz, A_OUT = –2 dBFS
f_IN = 3500 MHz, A_OUT(2) = –3 dBFS with 2-dB gain
55.5
146.6
60
60
62.5
61.2
58.3
57.5
56.4
54.0
153.6
152.3
149.4
148.6
147.5
145.1
63.1
24.7
61.8
60.0
58.0
56.5
54.7
53.2
10.0
9.7
9.3
9.1
8.8
8.5
68.0
65.0
69.0
62.0
59.0
57.0
68.0
74.0
69.0
62.0
62.0
57.0
dBFS
dBFS/Hz
dBFS
dB
dBFS
Bits
dBc
dBc
(1) Minimum values are specified at A_OUT = –3 dBFS, ADC sampling rate = 2.5 GHz.
(2) Output amplitude, A_OUT, refers to the signal amplitude in the ADC digital output that is same as the analog input amplitude, A_IN, except
when the digital gain feature is used. If digital gain is G, then A_OUT = G + A_IN.
(3) The ADC internal resistance = 65 Ω, the driving source resistance = 50 Ω.
(4) The minimum value of HD2 is specified by bench characterization.
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